If you want to make a web site, you need two things - your own domain and a website hosting plan for it. The domain registration is the actual web address which you type in a web browser to reach a site, while the hosting space is where your site files is going to be. These are two tightly related, yet independent services, even though many people assume that registering the domain name is enough. Similar to the disk space and the monthly traffic features which a given website hosting plan offers, there are a certain number of registered domain names which you can include as hosted which means that you can have the web content for them in some account even if the domains have been registered via a different service provider. In technical terms, it doesn't matter if a domain is registered and hosted with the exact same company or is registered with one company and pointed to another - in any case your websites will operate exactly the same way.